EP 4432454 A1 20240918 - ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Title (en)
ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE
Title (de)
ELEKTRODENFOLIE, ELEKTRODENANORDNUNG, BATTERIEZELLE, BATTERIE UND ELEKTRISCHE VORRICHTUNG
Title (fr)
FEUILLE D'ÉLECTRODE, ENSEMBLE ÉLECTRODE, ÉLÉMENT DE BATTERIE, BATTERIE ET DISPOSITIF ÉLECTRIQUE
Publication
Application
Priority
CN 2023071396 W 20230109
Abstract (en)
Embodiments of this application provide an electrode plate, including a current collector, an active substance layer, and a conductive structure. The current collector includes a body portion and a tab portion provided along a first direction, where the body portion is covered with the active substance layer, the tab portion is not covered with the active substance layer, and the conductive structure extends along the first direction and is connected to the tab portion, forming a connecting zone. In a second direction, the connecting zone has a dimension greater than the thickness of a body region of the electrode plate, so that after an electrode assembly is wound, connecting zones of adjacent layers are mutually attached; where the second direction is a thickness direction of the electrode plate, the second direction is perpendicular to the first direction, and the body region of the electrode plate is a region corresponding to the body portion covered with the active substance layer. The electrode plate provided in the embodiments of this application can improve the safety performance of the battery. This application also provides an electrode assembly, battery cell, battery, and electric device including the foregoing electrode plate.
IPC 8 full level
H01M 50/533 (2021.01)
CPC (source: EP US)
H01M 4/661 (2013.01 - EP); H01M 4/667 (2013.01 - US); H01M 10/0431 (2013.01 - EP US); H01M 10/0587 (2013.01 - EP); H01M 50/213 (2021.01 - US); H01M 50/533 (2021.01 - EP); H01M 50/534 (2021.01 - EP); H01M 50/536 (2021.01 - EP US); H01M 50/538 (2021.01 - EP); H01M 2004/021 (2013.01 - US); Y02E 60/10 (2013.01 - EP); Y02P 70/50 (2015.11 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4432454 A1 20240918; CN 118633205 A 20240910; US 2024332541 A1 20241003; WO 2024148470 A1 20240718
DOCDB simple family (application)
EP 23864159 A 20230109; CN 2023071396 W 20230109; CN 202380011218 A 20230109; US 202418743130 A 20240614